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Air Quality History for Castle Rock, United States

Historical PM2.5 and AQI trend from monitoring stations near Castle Rock, United States.

38
Current AQI
Good CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

454h

PM2.5 Station

454h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-21 42 19–64 10.7 µg/m³ 15.8 23h 23
2026-07-20 28 7–64 6.9 µg/m³ 11.8 24h 22
2026-07-19 24 17–48 5.7 µg/m³ 14.8 24h 23
2026-07-18 28 20–53 6.7 µg/m³ 17.6 24h 22
2026-07-17 29 23–53 6.9 µg/m³ 16.0 24h 24
2026-07-16 33 20–241 13.5 µg/m³ 15.0 24h 22
2026-07-15 24 18–31 5.8 µg/m³ 21.1 24h 23
2026-07-14 25 19–30 6.0 µg/m³ 11.3 24h 22
2026-07-13 32 18–169 9.8 µg/m³ 9.3 24h 23
2026-07-12 22 12–30 5.3 µg/m³ 5.8 24h 21
2026-07-11 32 10–250 13.9 µg/m³ 7.5 22h 19
2026-07-10 21 16–29 5.1 µg/m³ 10.6 23h 22
2026-07-09 23 19–28 5.5 µg/m³ 13.9 23h 23
2026-07-08 44 20–66 11.1 µg/m³ 19.5 24h 24
2026-07-07 68 60–81 20.0 µg/m³ 37.1 24h 24
2026-07-06 67 15–85 20.6 µg/m³ 38.4 14h 21
2026-07-05 62 51–78 17.3 µg/m³ 23.1 24h 24
2026-07-04 56 52–65 14.4 µg/m³ 27.0 24h 24
2026-07-03 59 52–73 16.1 µg/m³ 26.7 24h 25
2026-07-02 54 24–64 14.1 µg/m³ 25.9 13h 21
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